Scalable Matrix Multiplication With Hybrid CMOS-RSFQ Digital Signal Processor

Autor: Irina Kataeva, Henrik Engseth, Anna Kidiyarova-Shevchenko
Rok vydání: 2007
Předmět:
Zdroj: IEEE Transactions on Applied Superconductivity. 17:486-489
ISSN: 1051-8223
DOI: 10.1109/tasc.2007.901451
Popis: We report an RSFQ digital signal processor design based on hybrid RSFQ-CMOS memory suitable for a general matrix-on-matrix multiplication algorithm. The DSP consists of an RSFQ multiply-accumulate unit, memory caches and synchronization block, partitioned into multiple chips, and a large CMOS memory. The parameters of the RSFQ DSP are a 10times10 bits multiplication with rounding to 14 bits, an 18-bit accumulator length and a 3.7 Kb memory cache. The maximum simulated clock frequency is equal to 24 GHz for HYPRES 4.5 kA/cm2 process and optimum communication bandwidth with the CMOS memory is 2 Gbps. The simplified version of the RSFQ DSP consisting of a 4times4 MAC with rounding to 5 bits and 17times6 memory caches has been designed for HYPRES 4.5 kA/cm2 process.
Databáze: OpenAIRE